Saw-tooth-dressing device



into two parts, a a".

UNITED STATES PATENT OFFICE.

HENRY O. KELSEY, OF \VEST SALAMANCA, NE VV YORK.

SAW-TOOTH-DRESSING DEVICE.

fiPECIPICATION forming part of Letters Patent No. 340,583, dated April27, 1886.

Application filed February 10, 1886. Serial No. 191,481. (No model.)

To all whom it may concern.-

Be it known that I, HENRY O. KELsnY, a citizen of the United States,residing at \Vest Salamanca, in the county of Oattaraugus and State ofNew York, have invented a new and useful Improvement inSaw-Teeth-Dressing Devices, of which the following is a specification,reference being had to the accompanying drawings.

My invention relates to improvements in saw-teeth-dressing devices; andit consists, essentially,in a device adapted to receive one or morefilesections, to be set to receive sawblades of different thicknesses,and, after having been set, to be operated by hand, for the purpose ofdressing or sharpening sawteeth. substantially as described hereinafter,and pointed out in the claims.

In the drawings, Figure 1 represents a perspective view of asaw-dressingdeviceembody ing my improvements. Fig. 2 represent-s a side viewthereof. Fig. 3 is an edge view, and Fig. 4 is a sectional view on theline 00 x of Fig. 2.

Referring to the drawings, in which similar letters of reference denotesimilar parts, A designates a body or casting, preferably of brass, butwhich may be made of any suitable spring-metal. a designates a slit thatextends from side to side of the casting and divides it At the point a"the slit is broadened and terminates at the lower end of the casting ata in rounded portions a that operate as springs to open outward theparts a a, as will be hereinafter set forth. The sides a a are cut awayat a, for the purpose of form ing side arms, I), that receive and holdfilesections B in recesses b",formed in the adjacent inner faces of theside arms, b.

c c designate adjusting or gripping screws that extend from one to theother of the arms I) at each side of the casting, as shown. The sidesand bottom of the casting A are hollowed out or cut away, as shown at dcl, for the purpose of lightening the casting.

D designates an adjusting-screw that passes from one to the other of thesections a a, for the purpose of adjusting said sections and theircontained file-sections B nearer to or farther from each other to suitsaws of diflerent thicknesses.

In practice the sides a a are adjusted to the proper distance from eachother to permit a saw-blade to be introduced between the filesections13. The casting is now moved back and forth, the filesections B thereonoperat ing to dress the sides of the teeth to a uniform thickness, aswill be understood.

Modifications in detail of construction may be made in theherein-described invention without departing from the spiritorsacrificing the ad vantages thereofas, for instance, blocks of emery maybe used in lieu of the files.

I claim 1. The improved saw-dressing device consisting of a casting, A,provided with a slit, a, to receive a saw, file-sections B, to dress thesides of said saw, and adjusting means to ad just said sections,substantially as described.

2. The improved saw-dressing device consisting of a casting having aslit, a, extending from its top nearly to its bottom, as shown, and armsb and transverse adjusting-screws c c, said arms having recesses b", toreceive filesections B, and an adjusting-screw to adjust said sectionsnearer to or farther from each other, substantially as described.

3. The body A, provided with a central slit or opening to receive thesaw, and a tilesection on each side of the opening, as set forth.

4. The body A, provided with a central slit or opening, forming arms,and seats a in the arms to receive the tile or emery sections, as setforth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

HENRY o. KELSEY.

itnesses ALBERT A- BIRD, J OSHUA E. CHAMPLIN.

